CVE-2018-4451

Name: CVE-2018-4451
Creator: NVD / NIST
Published: 2020-10-27T20:15:13.893+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.90%

Last modified Jun 17, 2026

CVE-2018-4451 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. This issue is fixed in macOS Mojave 10.14. A memory corruption issue was addressed with improved input validation.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.

Description

This issue is fixed in macOS Mojave 10.14. A memory corruption issue was addressed with improved input validation.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.90%

54.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	< 10.14

References

https://support.apple.com/en-us/HT209139Vendor Advisory
https://support.apple.com/en-us/HT209139Vendor Advisory

Timeline

Published: Oct 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4451?

This issue is fixed in macOS Mojave 10.14. A memory corruption issue was addressed with improved input validation.

How severe is CVE-2018-4451?

CVE-2018-4451 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4451?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-4451?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST